Can chili rasboras live with swordtails?

Verdict

Yes, with care

Yes, with care. Chili rasboras and swordtails can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

Chili rasbora75–82°F · pH 4–7

Swordtail72–79°F · pH 7–8.3

What to watch

Watch outWater chemistry is a squeeze. The only pH that suits both is around 7.
Watch outAt 5 inches a swordtail can swallow a small chili rasbora. Fast, alert fish usually stay out of reach.

What works

Both are fine at 75–79°F.

Water side by side

The green band is the temperature range both can live in.

The green band is the pH both tolerate.

Size to scale

Adult length in an aquarium. A fish can swallow anything that fits in its mouth, roughly a third to half its own length for predators.

Care at a glance

	Chili rasbora	Swordtail
Temperature	75–82 °F	72–79 °F
pH	4–7	7–8.3
Adult size	0.8 in	5.0 in
Minimum tank	5 gal	30 gal
Temperament	Peaceful	Semi-aggressive
Swims at	Middle	Middle
Group	Groups of 8+	Groups of 3+
Diet	Carnivore	Omnivore

Better tank mates for chili rasboras

All chili rasbora tank mates

Better tank mates for swordtails

All swordtail tank mates

Questions

Can chili rasboras live with swordtails?

Yes, with care. Chili rasboras and swordtails can share a tank, but watch one thing. Water chemistry is a squeeze. The only pH that suits both is around 7.

What temperature suits both chili rasboras and swordtails?

75–79 °F. Chili rasboras need 75–82 °F, swordtails need 72–79 °F.

What size tank do chili rasboras and swordtails need together?

At least 30 gal, set by the swordtail. Add space for each extra fish.